Re: [PATCH iproute2-next v3] lib/fs: fix issue when {name,open}_to_handle_at() is not implemented

[David Ahern]

On 5/14/21 6:20 AM, Petr Vorel wrote:
> 
>>> This causes compile failures if anyone is reusing a tree. It would be
>>> good to require config.mk to be updated if configure is newer.
>> Do you mean the config.mk should have a dependency to configure in the
>> Makefile? Wouldn't that be better as a separate patch?
> I guess it should be a separate patch. I'm surprised it wasn't needed before.
> 


yes, it should be a separate patch, but it needs to precede this one.

This worked for me last weekend; I'll send it when I get a chance.

diff --git a/Makefile b/Makefile
index 19bd163e2e04..5bc11477ab7a 100644
--- a/Makefile
+++ b/Makefile
@@ -60,7 +60,7 @@ SUBDIRS=lib ip tc bridge misc netem genl tipc devlink
rdma dcb man vdpa
 LIBNETLINK=../lib/libutil.a ../lib/libnetlink.a
 LDLIBS += $(LIBNETLINK)

-all: config.mk
+all: config
        @set -e; \
        for i in $(SUBDIRS); \
        do echo; echo $$i; $(MAKE) -C $$i; done
@@ -80,8 +80,10 @@ all: config.mk
        @echo "Make Arguments:"
        @echo " V=[0|1]             - set build verbosity level"

-config.mk:
-       sh configure $(KERNEL_INCLUDE)
+config:
+       @if [ ! -f config.mk -o configure -nt config.mk ]; then \
+               sh configure $(KERNEL_INCLUDE); \
+       fi

 install: all
        install -m 0755 -d $(DESTDIR)$(SBINDIR)